Green did not practice Tuesday while undergoing yet another battery of medical tests to determine the cause of numbness in his lower leg and foot.

Coach Dick Vermeil, just a day after saying that previous tests showed no medical reason for the problem that forced Green to the sideline early in last week's Seattle loss, could not say whether Green would play in Friday's preseason finale in St. Louis.

"We'll know more (today)," Vermeil said. "We'll either have an answer, or the answer will be that there's nothing wrong."

If Green cannot play in the finale, Kansas City has only Jonathan Quinn, who joined the team only last Tuesday, and rookie James Kilian as healthy quarterbacks.

Backup Todd Collins did some light throwing with his fractured right hand Tuesday but said he is not ready to throw in a game. Damon Huard still has not been cleared to play after sustaining a concussion in the Arizona game.

The Chiefs also will play a second game Friday without kick returner Dante Hall, who injured a knee in the Arizona game. Vermeil called Hall "very doubtful" for St. Louis, but held out hope that he'd be ready for the Sept. 11 regular season opener with the Jets.

The Chiefs will get a first look Friday at two newcomers -- linebacker Kendrell Bell and wide receiver Freddie Mitchell.

"He didn't favor his knee, he worked hard and caught the ball when we threw it to him," Vermeil said of Mitchell, who has been out a month with a sore knee and now faces what could be a one-shot audition in his bid to win a spot with a new club.

Chris Landsberger/The Capital-Journal

Quarterback Trent Green did not practice Tuesday and could miss Friday's preseason finale against the St. Louis Rams.

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"We need to see that he's as good as he was (with Philadelphia)," Vermeil said. "Not having coached him before, all we know is what we've seen on video. We know he's a first-round pick who's made big catches in championship games and Super Bowls. We know he's experienced and poised and tough. Now we just have to determine if he's healthy enough."

Mitchell, however, doesn't see himself facing a one-game tryout. But even if it came down to that, the self-style "People's Choice" vowed to be up for the challenge.

"I've got four years of tapes of big games," he said. "I was breastfed on big games."

Bell, who played only three games in Pittsburgh last year and has been held out of contact this preseason to guard against further injury, practiced Tuesday and moved well, Vermeil said.

"Now I want to see him move that fast against somebody who doesn't like him," Vermeil said. "He'll get that chance Friday."

NOTES -- Among the roster moves made Tuesday to get to the 75-player limit -- with 10 NFL Europe players exempted from the first cuts -- were two backup safeties with starting experience, Shaunard Harts and Willie Pile. Their departure would suggest that the Chiefs are comfortable with Jerome Woods and converted cornerback William Bartee as their backups to Greg Wesley and Sammy Knight.

The Chiefs also put injured veteran halfback/fullback Robert Holcombe on injured reserve. If he accepts an injury settlement, Holcombe could rejoin the team in six weeks if his knee heals.

Also released were three young receivers -- Richard Smith, Darrell Hill and undrafted rookie Nathaniel Curry. Also cut was former Kansas State tackle Thomas Barnett and punt Nick Murphy, the Chiefs' late-season punter last year.